4-Hydroxy-3-nitropyridine, 98%

About 4-Hydroxy-3-nitropyridine, 98%

4-Hydroxy-3-nitropyridine is a pyridine derivative carrying the CAS registry number 5435-54-1 with a typical assay of 98%. Its molecular formula is C5H4N2O3 and its molecular weight is 140.1 g/mol. The IUPAC name is 3-nitro-1H-pyridin-4-one. Alternative names: 3-Nitro-4-pyridinol and 3-nitro-1,4-dihydropyridin-4-one.

The material typically appears as yellow powder or crystals or chunks. Reported physical data include a melting point of 285 °C. Store in a tightly closed container in a cool, dry and well-ventilated place. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Key uses span organic synthesis and API synthesis. It is used across pharmaceutical manufacturing and academic and industrial research.

Available in 5 g, 25 g, 100 g and 1 kg packs, 4-Hydroxy-3-nitropyridine is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	4-Hydroxy-3-nitropyridine, 98%
Catalogue No.	VQ-011812
CAS Number	5435-54-1
IUPAC name	3-nitro-1H-pyridin-4-one
Molecular formula	C₅H₄N₂O₃
Molecular weight	140.1 g/mol
Exact mass	140.0222
Purity / assay	98%
HSN code	29335990
InChIKey	YUWOLBZMQDGRFV-UHFFFAOYSA-N
SMILES	C1=CNC=C(C1=O)[N+](=O)[O-]
PubChem CID	228506

Physical properties
Physical form	Crystalline
Appearance	Yellow powder or crystals or chunks
Melting point	285 °C
LogP (XLogP3)	0.2
H-bond donors / acceptors	1 / 4
TPSA	74.9 Å²
Synonyms	3-Nitro-4-pyridinol, 3-nitro-1,4-dihydropyridin-4-one, 3-nitropyridin-4-ol, 3-Nitropyridin-4(1H)-one, 3-Nitro-4-hydroxypyridine, 3-Nitro-4-pyridone, 4(1H)-Pyridinone, 3-nitro-, 3-nitro-4(1H)-pyridinone, 3-Nitro-pyridin-4-ol, 4-hydroxy-3-nitropytidine, 3-Nitro-4-pyridol, 4-Hydroxy-3-nitrop

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 4-Hydroxy-3-nitropyridine, 98%?

The CAS Registry Number of 4-Hydroxy-3-nitropyridine, 98% is 5435-54-1. It is also known as 3-Nitro-4-pyridinol, 3-nitro-1,4-dihydropyridin-4-one, 3-nitropyridin-4-ol.

What is the molecular formula and molecular weight of 4-Hydroxy-3-nitropyridine, 98%?

4-Hydroxy-3-nitropyridine, 98% has the molecular formula C5H4N2O3 and a molecular weight of 140.1 g/mol. Its IUPAC name is 3-nitro-1H-pyridin-4-one.

Which grade and pack sizes of 4-Hydroxy-3-nitropyridine, 98% can I order?

We supply 4-Hydroxy-3-nitropyridine, 98% in (98%) grade, in 5 g, 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 4-Hydroxy-3-nitropyridine, 98%?

Yes. Every lot of 4-Hydroxy-3-nitropyridine, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 4-Hydroxy-3-nitropyridine, 98% be shipped internationally?

Yes. 4-Hydroxy-3-nitropyridine, 98% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.